General

  • Target

    gay.scr

  • Size

    659KB

  • Sample

    241224-tpgsfs1rdp

  • MD5

    699142205c509b571fd991aa528c14ad

  • SHA1

    fd796f14c1b45e7ac1cc88c4060e8a23bcaab156

  • SHA256

    363fce9e5352a207dda57123b938b0b9624d0323f81cd9fd367e8fcafe5cc23e

  • SHA512

    c2a5818ceff8174a1dc3f097c0eac35b6196a692d7bbcab36faecde105166bd36a6bc5ea9bc1b20e8e44c67b651f698e5ac4db00c46e29005ee8587080a493b2

  • SSDEEP

    12288:69HFJ9rJxRX1uVVjoaWSoynxdO1FVBaOiRZTERfIhNkNCCLo9Ek5C/hG:2Z1xuVVjfFoynPaVBUR8f+kN10EBU

Malware Config

Extracted

Family

darkcomet

Botnet

Guest1f63242m

C2

rose324-33082.portmap.host:33082

Mutex

DC_MUTEX-V8T2ADJ

Attributes
  • InstallPath

    MSDCSC\msdcsjc.exe

  • gencode

    FFSpYmDpe0mC

  • install

    true

  • offline_keylogger

    true

  • persistence

    true

  • reg_key

    reahltekaudio

Targets

    • Target

      gay.scr

    • Size

      659KB

    • MD5

      699142205c509b571fd991aa528c14ad

    • SHA1

      fd796f14c1b45e7ac1cc88c4060e8a23bcaab156

    • SHA256

      363fce9e5352a207dda57123b938b0b9624d0323f81cd9fd367e8fcafe5cc23e

    • SHA512

      c2a5818ceff8174a1dc3f097c0eac35b6196a692d7bbcab36faecde105166bd36a6bc5ea9bc1b20e8e44c67b651f698e5ac4db00c46e29005ee8587080a493b2

    • SSDEEP

      12288:69HFJ9rJxRX1uVVjoaWSoynxdO1FVBaOiRZTERfIhNkNCCLo9Ek5C/hG:2Z1xuVVjfFoynPaVBUR8f+kN10EBU

    • Darkcomet

      DarkComet is a remote access trojan (RAT) developed by Jean-Pierre Lesueur.

    • Darkcomet family

    • Modifies WinLogon for persistence

    • Modifies firewall policy service

    • Modifies security service

    • Windows security bypass

    • Disables RegEdit via registry modification

    • Disables Task Manager via registry modification

    • Sets file to hidden

      Modifies file attributes to stop it showing in Explorer etc.

    • Checks computer location settings

      Looks up country code configured in the registry, likely geofence.

    • Deletes itself

    • Executes dropped EXE

    • Windows security modification

    • Adds Run key to start application

    • Suspicious use of SetThreadContext

MITRE ATT&CK Enterprise v15

Tasks